• 检查近期死锁;定位到具体的对象。方便排查问题


    /****************************************************************
    * 检查近期死锁;定位到具体的对象。方便排查问题;
    ********************************************************************/

    DECLARE @SessionName SysName

    SELECT @SessionName = 'system_health'


    IF OBJECT_ID('tempdb..#Events') IS NOT NULL BEGIN
    DROP TABLE #Events
    END

    DECLARE @Target_File NVarChar(1000)
    , @Target_Dir NVarChar(1000)
    , @Target_File_WildCard NVarChar(1000)

    SELECT @Target_File = CAST(t.target_data as XML).value('EventFileTarget[1]/File[1]/@name', 'NVARCHAR(256)')
    FROM sys.dm_xe_session_targets t
    INNER JOIN sys.dm_xe_sessions s ON s.address = t.event_session_address
    WHERE s.name = @SessionName
    AND t.target_name = 'event_file'

    SELECT @Target_Dir = LEFT(@Target_File, Len(@Target_File) - CHARINDEX('\', REVERSE(@Target_File)))

    SELECT @Target_File_WildCard = @Target_Dir + '\' + @SessionName + '_*.xel'

    --Keep this as a separate table because it's called twice in the next query. You don't want this running twice.
    SELECT DeadlockGraph = CAST(event_data AS XML)
    , DeadlockID = Row_Number() OVER(ORDER BY file_name, file_offset)
    INTO #Events
    FROM sys.fn_xe_file_target_read_file(@Target_File_WildCard, null, null, null) AS F
    WHERE event_data like '<event name="xml_deadlock_report%'

    ;WITH Victims AS
    (
    SELECT VictimID = Deadlock.Victims.value('@id', 'varchar(50)')
    , e.DeadlockID
    FROM #Events e
    CROSS APPLY e.DeadlockGraph.nodes('/event/data/value/deadlock/victim-list/victimProcess') as Deadlock(Victims)
    )
    , DeadlockObjects AS
    (
    SELECT DISTINCT e.DeadlockID
    , ObjectName = Deadlock.Resources.value('@objectname', 'nvarchar(256)')
    FROM #Events e
    CROSS APPLY e.DeadlockGraph.nodes('/event/data/value/deadlock/resource-list/*') as Deadlock(Resources)
    )
    SELECT *
    FROM
    (
    SELECT e.DeadlockID
    , TransactionTime = Deadlock.Process.value('@lasttranstarted', 'datetime')
    , DeadlockGraph
    , DeadlockObjects = substring((SELECT (', ' + o.ObjectName)
    FROM DeadlockObjects o
    WHERE o.DeadlockID = e.DeadlockID
    ORDER BY o.ObjectName
    FOR XML PATH ('')
    ), 3, 4000)
    , Victim = CASE WHEN v.VictimID IS NOT NULL
    THEN 1
    ELSE 0
    END
    , SPID = Deadlock.Process.value('@spid', 'int')
    , ProcedureName = Deadlock.Process.value('executionStack[1]/frame[1]/@procname[1]', 'varchar(200)')
    , LockMode = Deadlock.Process.value('@lockMode', 'char(1)')
    , Code = Deadlock.Process.value('executionStack[1]/frame[1]', 'varchar(1000)')
    , ClientApp = CASE LEFT(Deadlock.Process.value('@clientapp', 'varchar(100)'), 29)
    WHEN 'SQLAgent - TSQL JobStep (Job '
    THEN 'SQLAgent Job: ' + (SELECT name FROM msdb..sysjobs sj WHERE substring(Deadlock.Process.value('@clientapp', 'varchar(100)'),32,32)=(substring(sys.fn_varbintohexstr(sj.job_id),3,100))) + ' - ' + SUBSTRING(Deadlock.Process.value('@clientapp', 'varchar(100)'), 67, len(Deadlock.Process.value('@clientapp', 'varchar(100)'))-67)
    ELSE Deadlock.Process.value('@clientapp', 'varchar(100)')
    END
    , HostName = Deadlock.Process.value('@hostname', 'varchar(20)')
    , LoginName = Deadlock.Process.value('@loginname', 'varchar(20)')
    , InputBuffer = Deadlock.Process.value('inputbuf[1]', 'varchar(1000)')
    FROM #Events e
    CROSS APPLY e.DeadlockGraph.nodes('/event/data/value/deadlock/process-list/process') as Deadlock(Process)
    LEFT JOIN Victims v ON v.DeadlockID = e.DeadlockID AND v.VictimID = Deadlock.Process.value('@id', 'varchar(50)')
    ) X
    ORDER BY DeadlockID DESC

    ------------------------------获取死锁关联对象信息--------

    SELECT OBJECT_NAME(p.object_id) AS TableName ,
    i.name AS IndexName
    FROM sys.partitions AS p
    INNER JOIN sys.indexes AS i ON p.object_id = i.object_id
    AND p.index_id = i.index_id
    WHERE partition_id = 72058906056982528

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  • 原文地址:https://www.cnblogs.com/csj007523/p/16039130.html
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